diff --git a/synapse/federation/federation_client.py b/synapse/federation/federation_client.py index 8bf1ad0c1f..d05ed91d64 100644 --- a/synapse/federation/federation_client.py +++ b/synapse/federation/federation_client.py @@ -209,8 +209,6 @@ class FederationClient(FederationBase): Will attempt to get the PDU from each destination in the list until one succeeds. - This will persist the PDU locally upon receipt. - Args: destinations (list): Which home servers to query event_id (str): event to fetch diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 6793f9b6c6..38bebbf598 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -341,10 +341,9 @@ class FederationHandler(BaseHandler): ) with logcontext.nested_logging_context(p): - # XXX if any of the missing prevs share missing state or auth - # events, we'll end up requesting those missing events for - # *each* missing prev, contributing to the hammering of /event - # as per https://github.com/matrix-org/synapse/issues/2164. + # note that if any of the missing prevs share missing state or + # auth events, the requests to fetch those events are deduped + # by the get_pdu_cache in federation_client. remote_state, got_auth_chain = ( yield self.federation_client.get_state_for_room( origin, room_id, p,